[FerryScoob]

Hi All,

I have just bought a 2001 TT 225. It drove like a dream on the test drive so I bought it. However on the way the check engine light came on but still drove great.
I took at to a friends house and got the fault code read. It came back with P0171 (system too lean bank 1). He cleared the fault and I took it for a drive back home and the car hesitated/misfired when accelerating breifly then it was fine for the next 10 miles with no CEL.

Any ideas? MAF? o2 sensor?

Thanks,
Barry.

 

[ashmo]

Exactly the same as mine, is it modified in any way?

 

[Hoggy]

Hi Barry, Wecome to the TTF.. . Disconnect MAF to see if it makes a difference...Have a look here.
http://wiki.ross-tech.com/wiki/index.ph ... 171/000369
Hoggy.

 

[FerryScoob]

Exactly the same as mine, is it modified in any way?

No bog standard with a full service history. Am a bit gutted because the car is mint.

 

[TT SMITHY]

Exactly the same as mine, is it modified in any way?

No bog standard with a full service history. Am a bit gutted because the car is mint.

This got me when i bought mine,, car was mint drove fantastic within a couple of
months i was absolutely broke for a long time through issues.. :?

 

[FerryScoob]

Exactly the same as mine, is it modified in any way?

No bog standard with a full service history. Am a bit gutted because the car is mint.

This got me when i bought mine,, car was mint drove fantastic within a couple of
months i was absolutely broke for a long time through issues.. :?

Not filling me with a huge amount of confidence. sorry yours ended up a money pit

 

[TT SMITHY]

im sure yours wont be to bad like anything you get the good ones and then the money pits
for the money i spent i should of been driving around in a Nissan GTR :lol:

this forum is very helpful so dont worry might save you a few quid

 

[FerryScoob]

im sure yours wont be to bad like anything you get the good ones and then the money pits
for the money i spent i should of been driving around in a Nissan GTR :lol:

this forum is very helpful so dont worry might save you a few quid

Yeah I had a similar experience with an Impreza. Bought it for 5grand in 2004 and and with 3 months I had spent the same again keeping it on the road and then it went steadily up from there. Ended up hating it and giving the thing away.

 

[Taylortony]

Barry don't get despondent, do as Hoggy asks then come back and say if it improves.

 

[millepeed]

hi there
had this problem twice on my wifes tt. 1st time it was breather hoses split. 2nd time it was a vacume pipe off at the plenum. bothe times it came up with bank 1 fuel to lean. have a check of your breather system of hoses and your vacume pipes. easy fix if it is but i would get new ones asap. otherwise could cause more probs in the future.

 

[jamman]

Perished or split hoses check all especially the ones hidden away under the manifold etc

 

[millepeed]

Perished or split hoses check all especially the ones hidden away under the manifold etc

we know all about these ones dont we.
james have you become a mod
not going to walk around with a target on your back are you :lol: :lol: :lol: :-*

 

[TT SMITHY]

Jamman only just noticed that it you sig with you and your manager "Wak" you have
become the (((((( MOD God ))))))) :lol:

 

[Pejsen]

Just cured my 180 coupe for that last weekend by replacing MAF and fuel-filter.
Mine had symtoms of bad engine performance before the change.

 

[RudeBadger]

Exactly the same as mine, is it modified in any way?

No bog standard with a full service history. Am a bit gutted because the car is mint.

could be something simple buddy.... just check everything methodically.... and you'll find the problem + you'll know the engine bsy inside out thats half the fun....

 

[FerryScoob]

Update: checked for leaks, nothing obvious. Tried swappin maf from a 180 but thats a smaller diameter. So have unplugged the maf and the car has boost again but now the traction light has come on.
So I think it needs a new maf and then erase the codes and see how it goes.
Any other advice?

 

[Hoggy]

Hi, As I suggested replace the MAF with genuine Bosch, fault light should clear after a couple of runs.
Hoggy.

 

[FerryScoob]

Hi, As I suggested replace the MAF with genuine Bosch, fault light should clear after a couple of runs.
Hoggy.

Many thanks hoggy. Next question where is cheapest for a maf. I checked euro carparts last night and they listed them for £68 but now I can't find them on there site.

 

[Hoggy]

Hi, Approx £63 with TTF discount & after surcharge refunded. for 225 BAM engine.

http://www.eurocarparts.com/ecp/c/Audi_ ... 7e3&000009

Hoggy.

 

[ashmo]

Mate you can do a MAF test first with a £7 cable off ebay before spending £70 on something that might not be the issue

Check these
http://www.ebay.co.uk/itm/180885493937
http://www.myturbodiesel.com/1000q/a4/M ... leaner.htm